Vacuum Relief Valve, Body Material Brass, Inlet Type MNPT, Outlet Type MNPT, Inlet Size 3/4 in, Outlet Size 3/4 in, Factory Set Pressure 15 psi, Pressure Range 0 to 200 psi, Not Applicable BtuH, Disc Material Silicone, Overall Height 2 in, Application Domestic Water Heaters, Supply Tanks, Overall Length 2 in, Spring Material 302 Stainless Steel, Temp. Range 0 Degrees to 250 Degrees F, Test Lever Test Lever Not Included, Standards ANSI Z 21.22, CSA. This item has been restricted from sale in the following state (s): []